addi steel crochet hooks come in small sizes and have fine gold tips for detailed projects. Available in: US18 (.5mm), 16 (.6mm), 14 (.75mm), 12 (1.00mm), 10 (1.25mm), 8 (1.5mm) and 6 (1.75mm). Sizes are listed in approximate US sizes -AND- exact metric sizes for your convenience. All addi knitting needles are manufactured to exact metric sizes. Please Note: Every addi product purchased from an Authorized addi Dealer comes with a Lifetime Warranty from any manufacturer's defect.